| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 8.82 | 0.00 | 5.48 | -5.15 | 28.31 | -35.10 | 107.85 | 0.6033 | 383.8 | 302.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-16 16:00:38 UT
See sunspots with tool (Click here to study sunspot positions and configurations with tool using white-light and magnetogram images and polarity drawing) (It is recommended to set high resolution on your display!) |
| spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 1.53 | 0.00 | 0.92 | -4.55 | 30.67 | -32.75 | 108.13 | 0.5696 | 388.0 | 492.1 | |
| 0.00 | 0.72 | 0.00 | 0.44 | -4.82 | 30.29 | -33.13 | 108.37 | 0.5760 | 694.0 | 569.1 | |
| 0.00 | 1.62 | 0.00 | 0.98 | -4.49 | 30.12 | -33.29 | 107.73 | 0.5767 | 765.0 | 624.2 | |
| 0.00 | 0.90 | 0.00 | 0.55 | -4.39 | 28.84 | -34.57 | 106.89 | 0.5935 | 619.0 | 525.7 | |
| 0.00 | 2.43 | 0.00 | 1.52 | -5.72 | 27.90 | -35.52 | 108.51 | 0.6118 | 493.0 | 393.3 | |
| 0.00 | 1.62 | 0.00 | 1.07 | -5.99 | 24.14 | -39.27 | 107.08 | 0.6609 | -656.0 | -512.8 | |
| Proj. U | - Projected umbra area in millionths of solar disc, negative values indicate | |
|
that the umbra consists of fragmented regions which cannot be separated without losing umbral area. In this way several spots (intensity minima in the umbra) have a common umbra, e.g. -2 means that the given spot shares an umbra with spot No.2, and the common U value is indicated at spot No.2. |
||
| Proj. WS | - Projected whole spot area in millionths of solar disc, negative values indicate | |
|
that several umbras have a common penumbra, e.g. -7 means that the given umbra shares a penumbra with umbra No.7, and the WS value is indicated at No.7. |
||
| Corr. U | - Corrected umbra area in millionths of solar hemisphere, for negative values see above | |
| Corr. WS | - Corrected whole spot area in millionths of solar hemisphere, for negative values see above | |
| B | - Heliographic latitude B; positive: North, negative: South | |
| L | - Heliographic longitude L | |
| LCM | - Longitudinal distance from the Sun's central meridian | |
| Pos. angle | - Position angle | |
| r | - Distance from the centre of Sun's disc in terms of Sun's radius | |
| MU | - Mean magnetic field within the umbra contour averaged the pixel values with sign. | |
| MP | - Mean magnetic field within the penumbra contour averaged the pixel values with sign. | |